Novyc NOVYC1 Users manual

© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

Compliance Approved 2.4 GHz RF Transceiver Modules

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

with Built-In RFDP8 Application Protocol

Complete Compliance Approved & Certified, READY-TO-USE, 2.4 GHz wireless solution with built-in RFDP8
interference-tolerant user application protocol. Includes RFID, 32 Bit ESN, Logic Switch Transmitter / Receiver,
9600-8N1 Serial UART Transceiver and many easy-to-use ad dressable network modes. No development requi red at
all, no RF layout, no code writing, all features are built-in. Be up and running with a wireless solution in minutes.

CE • ESTI TESTED & COMPLIANT

rw

Free Applications Support • Email your application questions to [e-mail]

500 Foot Range

RFDANT • RFD21743 FCC APPROVED

Simple
Drill Hole
Mount

Standard RFDP8 Interface

No Need for RF cables.
Only +3V • GND • Data.

1.5mm 11pin Connector.
Fits onto any PCB.
SMT or Through Hole.

2,000 FOOT ULTRA LONG RANGE

RFD21733/35 IC & FCC APPROVED

Easy to solder 0.050 Inch SMT pads

CE • ESTI TESTED & COMPLIANT

15mm x 15mm
(0.600 x

0.600 Inch)

Complete

RADIO
INSIDE

Use any plastic or metal
enclosure.

Antenna

Patents
Pending

Optional Configuration

External Whip Antenna

IC • FCC APPROVED

For use with

max. 5dBi Gain

KEYFOBs & RFID

CE • ETSI Compliant

Standard & Custom

1

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1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

The RFD21733 Module with its RFID interval factory set to 30 seconds is inside of a KEYFOB
enclosure with a CR2032 battery. The reference layout for this device is available through

[e-mail] if you want to build it yourself. However if you wish to purchase the

ready-made KEYFOBs from RF Digital they are available, part numbers shown below.
There are two modes of use, one is in Active RFID mode were the KEYFOB automatically

transmits its ESN once every 30 seconds. The other mode of use is SWITCH transmitter, which
is available in 1, 2 or 3 buttons. The RFID versions also have 1, 2 or 3 buttons so they serve as
an automatic RFID transmitter and in addition have the switch buttons in one KEYFOB.

If you do not need the automatic Active RFID feature, just use the Switch Button KEYFOBs.

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

KEYFOBs

Rotatable Buttons

Rotatable Buttons

RFD21783

Pressing button 1, 2 or 3 will cause the output 1, 2
or 3 on the RFD21733 Module or RFD21743 /
RFD21732 RFDANT to go high for the duration the
button is pressed, when in one of the 4 switch
modes. If in Serial UART mode, then you will
receive 1 byte representing which button is
pressed or if RFID transmission and 4 more bytes
indicatin

the 32 bit unique ESN of the KEYFOB.

RFD21782

Pressing button 1 or 3 will cause the output 1 or 3
on the RFD21733 Module or RFD21743 / RFD21732
RFDANT to go high for the duration the button is
pressed, when in one of the 4 switch modes. If in
Serial UART mode, then you will receive 1 byte
representing which button is pressed or if RFID
transmission and 4 more bytes indicating the 32
bit uni

ue ESN of the KEYFOB.

RFD21781

Pressing button 2 will cause the output 2 on the
RFD21733 Module or RFD21743 / RFD21732
RFDANT to go high for the duration the button is
pressed, when in one of the 4 switch modes. If in
Serial UART mode, then you will receive 1 byte
representing which button is pressed or if RFID
transmission and 4 more bytes indicating the 32
bit uni

ue ESN of the KEYFOB.

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFD21793

3 Button RFID Keyfob3 Button Switch Keyfob

RFD21792

2 Button RFID Keyfob2 Button Switch Keyfob

RFD21791

1 Button RFID Keyfob1 Button Switch Keyfob

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Free Applications Support • Email your application questions to [e-mail]

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RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

Range results need to be tested for every application and scenario. RF Digital's range tests are done line-of-sight
and outdoors in a typical city street setting. You should use these typical range test results as a point of reference,
until you can conduct your own range tests in your own test environment. If you have any questions, always feel
free to contact RF Digital Support at [e-mail]

LONG RANGE

MODULE

RFD21733

LONGER RANGE

MODULE RFDANT

RFD21733 RFD21743

ULTRA LONG RANGE

RFDANT

RFD21743

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

TYPICAL RANGE

500

FOOT

RANGE

150

Meters

1,000

FOOT

RANGE

Meters

300

MODULE

RFD21733

RFD21742

2,000

FOOT

RANGE

600

Meters

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

RFDANT

RFD21743
RFD21742RFD21742

Free Applications Support • Email your application questions to [e-mail]

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RFD21733/35 • FCC • IC
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Approved & Certified

• Active RFID

• Long Range RFID

• Remote Control

• Light Controls

• Home Automation

• Alarm Security

• Keyless Entry

• Perimeter Monitoring

LONG RANGE

KEYFOB / RFID

RFD21783
RFD21782
RFD21781
RFD21793
RFD21792
RFD21791

LONGER RANGE

KEYFOB / RFID

RFD21783
RFD21782
RFD21781
RFD21793
RFD21792
RFD21791

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

TYPICAL APPLICATIONS

• PC Keyboard Security

• Wireless Keyboard

• Wireless Mouse

• TV Remote

• Home Stereo Remote

• Asset Tracking

• Wireless PTT

• Remote Switches

350

FOOT

RANGE

100

Meters

13715 Alton Pkwy • Irvine • CA • 92618

• Remote Terminals

• Wireless RS232 DB9

• Wireless RS485

• Temperature Control

• HV/AC

• Meter Reading

• Data Acquisition

• Inventory Control

MODULE

RFD21733

RFDANT

700

FOOT

RANGE

200

Meters

RFD21743
RFD21742

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

• Keyfob Remotes

• Industrial Controls

• Vending Machines

• Pan-Tilt-Zoom Control

• Camera Flash Control

• Biometrics

• Seismic Monitoring

• M2M & many more…

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Free Applications Support • Email your application questions to [e-mail]

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Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
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There are 11 total active signal pins including power and ground for both MODULEs and RFDANTs. The MODULEs
have 7 additional ground pins. Also the MODULES have one extra pin for a total of 19 pins, this is pin 11, which
applies only to the RFD21735 which is for external antenna, however the RFD21733 pin 11 is a no-connect since it
has a built-in antenna.

RFD21733 • RFD21735 MODULEs

RFD21742 • RFD21743 RFDANTs

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

PINOUTs

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

RFD21733 RFD21735

There are a total of 8 ground pins, you only need
just one ground pin for an electrical connection to
make the module function. The additional ground
pins are for convenience and also performance
with layout configurations. The pin 12, 10 and 9
are recommended to always be connected since
they help provide some ground area for the
module as well as on the opposing side of the
antenna. However just one single ground out any
of the 8 GND pins are adequate for proper
function.

RFD21742 RFD21743

The black wire (ground) is pin #1, the red wire (+V)
is pin #2, and so on. See pin out on left side.

Free Applications Support • Email your application questions to [e-mail]

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© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

FEATURES

• Runs on a single coin cell for years.

• WiFi interference tolerant.

• Heavy 2.4 GHz noise and interference tolerant.

• Motor noise and interference tolerant.

• Very low cost.

• No external parts required.

• No RF layout required.

• Easy and ready-to-use, hand-held, eval and application boards available.

• Ultra small 15mm x 15mm footprint (RFD21733/RFD21735)

• Fully contained, truly finished, ready to use module.

• CE / ETSI / IC & FCC Certified and Approved.

• Typical range: 500 feet (150 meters): RFD21733 MODULE.

• Typical range: 2,000 feet (600 meters): RFD21742 and RFD21743 RF DANTs.

• Worldwide 2.4GHz ISM band operation.

• User configurable without need for any programming.

• 2uA Ultra low power modes.

• Only 14mA current consumption at 0dbm TX and 17mA at RX.

• 16 bit CRC data accuracy verification built-in.

• 32 bit unique factory ESN in every module (4 billion combination security).

• Flexible network modes, including broadcast and individual addressing.

• Optional version available for use with external antenna (RFD21735).

• Switch on/off, logic, remote-control without the need for an external controller.

• Switch nodes individually addressable without th e need for an external controller.

• Wide supply range +1.9V to +3.6V.

• Built-in, high performance internal miniature antenna (RFD21733).

• Peer to Peer (Ad-Hoc) networks and configurations.

• Point to Multi-Point networks and configurations.

• Multi-Point to Multi-Point networks and configurations.

• Selective addressing of any module by using factory built-in ESN.

• Fast-turn-around, minimal latency (20 milliseconds).

• Patent pending RFDP8 interference tolerant protocol.

• Full application protocol runs transparent to the user.

• Easy to use, simple to design in.

• Stores up to 60 ESNs (Electronic Serial Numbers) for n etwork modes.

• Many to one data modes ideal for multi-point data acquisition.

• Unlimited number of module nodes can communicate to each other.

RFDP8 Application Protocol • Mode Selector Chart

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RF Digital's RFDP8
application firmware
loaded into the
MODULEs or RFDANTs
can be customized to
fit application specific
requirements.

RF Digital can design
and manufacture fully
custom modules to fit
your needs.

If you do not find what
you're looking for, feel
free to contact
RF Digital with your
requirements. Email:
[e-mail]

For free RF layout
design reviews, send
color screen captures
of your layout to
[e-mail],
you will save time and
money before you fab
your boards.

Our FAST RESPONSE
Support Team
welcomes your
questions!

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Free Applications Support • Email your application questions to [e-mail]

6

© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Choosing between RFD21733 Module or RFD21743 RFDANT

The RFD21733 RF Module and the RFD21742 / RFD21743 RFD ANTs have the same electrical interface and are both
embedded with the Patent Pending RFDP8 interference immunity protocol. They are pin for pin electrically
compatible. Except for the different form factor, cost and range, they are basi cally the same. T he RFDANTs have
an 8 inch long 1.5mm, 11pin connector termination for its interface to your electronics, were the RFD21733 module
has a 19 pin SMT interface and solders to your PCB. Only 11 out of the 19 pins are used for electrical interface.

The RFD21733 is only 15mm square and has a range of about 500 feet. The RFD21733 module is about one quarter
the cost of the RFDANT. So why would you use the RFDANT? There are many reasons: The RFDANT is
hermetically, fully potted and over-molded, has an industrial rugged enclosure and the full radio system and
processing is all built into the Antenna structure itself. The RFDANTs mounting does not require a PCB at all,
simply just drill a hole into your enclosure and feed the 8 inch cable through and apply a nut and your RFDANT is
mounted and ready for use. The RFDANT does not have impacts from proximity effects from near-by metal
enclosures and objects. The RFDANT has a perfect antenna pattern which provides extraordinary, consistent
repeatable performance.

The RFDANT’s Revolutionary Patent Pending design enables it to reach distances of 2,000 feet, while still being an
Ultra Low Power device. This huge range is reached without any power amplifiers at all, it’s unique design is
responsible for it reaching these great distances without any extra battery drain or extra power. The RFDANT
makes it easy for you to satisfy GREEN directives due to its unique design and ultra high performance.

The RFDANT fits in the palm of your hand and looks like an Antenna, but of course it is much more since it is the
whole radio and processing system in one unit. There are no RF cables at all, simply connect +V, GND, and a few
logic signal wires based on your application and you are done. There is no need for PCB layout either. You can
directly connect to the 11 pin, 8 inch cable extending ou t o f the bottom of the RFDANT.

The RFD21733 is an ideal partner with the RFD21743 or RFD21742 RFDANTs. They can communicate with each
other using the RFDP8 protocol with switch logic IO or Serial UART. You can mix and match them as well, with
using RFD21733 on one end of your system and an RFDANT on the other.

The RFD21733 is a perfect fit when you need ultra small size and ultra low cost, and the RFDANT is an ideal solution
when you need ultra long range and do not want to place any parts onto your PCB.

Even if you will not be using the RFDANT for your application, it is still highly recommended to place the 11 pin
connector footprint on your PCB for the RFD21733 so you can have the option to simply plug in the RFDANT for
testing during your proto phases, or if you happen to have a customer come to you an d ask for more range, you can
simply give it to them by not soldering the RFD21733 and instead plugging in the RFD21742 or RFD21743 RFDANT.

If you have further questions about the trade offs between the Modules and the RFDANTs, always feel free to
contact [e-mail] were you will find very quick and helpful answers to your questions.

Solders to your PCB with its SMT pads.

Plugs into your PCB using its 8 inch long cable.

Free Applications Support • Email your application questions to [e-mail]

7

© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

The RFD21742 and RFD21743 are 100% identical hardw are, the only difference between the two is firmware loaded
at the RF Digital factory.

The RFD21742 is in compliance with CE / ETSI emission requiremen t s and is not for FCC.
The RFD21743 is in compliance with CE / ETSI emission requiremen t s and is FCC Certified and Approved.
The high performance of the RFDANT for FCC requires it to work in a 50% duty cycle mode, which means that when

you are running it in its 9600-8N1 UART mode, you can send up to 24 bytes in a row and then you must wait a
minimum of 24 byte lengths which is about 24mS before you send up to another 24 bytes. Fo r example you can
also send 12 bytes, wait 12mS and then send 12 bytes again, effectively yielding a 50% duty cycle. Note this is only
a transmit limitation with the RFDANT, it is not related to receive, so if you have a RFD21733 sending 100% duty
cycle at full speed, you can receive that with either RFDANT and it will be fine. But when you go to transmit, if you
are using the RFD21743 you will need to use a maximum of a 50% dut y cycle fo r the USA and FCC. However when
using the RFD21742 which is for Europe and the CE / ETSI markets, there is no duty cycle limitation.

That is the reason there are two part numbers for the RFDANT, the RFD21743 is 50% UART duty cycle for FCC and
the RFD21742 is CE and ETSI with 100% duty cycle.

So if you plan on selling into the USA market place, then use the RFD21743, if you are Europe ONLY, then you can
use the RFD21742. Also, of course you can use the RFD21743 for USA and Europe.

If you are sending in switch mode using the RFD21742, it will send a new packet every 16mS and the hang time for a
switch receiver in mode 6 or 7 is 50ms. Where with the RFD21743 it will send a new packet every 24ms to work
within the 50% duty cycle limit for FCC and IC.

If you require Canada (IC) Approval for the RFD21743, please contact [e-mail].
The impact with switch mode is hardly even noticed between the RFD21743 and RFD21742.
Most common applications are typically with burst data less then 24 b ytes per burst, so the difference between the

RFD21743 and RFD21742 is negligible, nevertheless the choice is still available for you and they are pin for pin
compatible.

Once you test an RFDANT, you will be truly amazed with its performance.

Differences between RFD21742 and RFD21743 RFDANTs

•

•

Plugs into your PCB using its 8 inch long cable.

Plugs into your PCB using its 8 inch long cable.

Free Applications Support • Email your application questions to [e-mail]

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© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

Revolutionary RFDANT Advantages

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

The RFD21743 and RFD21743 RFDANT are full 2.4 GHz radio transceivers including the RFDP8 protocol,
completely built into an antenna form factor allowing the entire radio transceiver to be outside your
product, where only the power and signal cable will extend into your product enclosure to then be
connected to your PCB with a simple 1.5mm SMT or THROUGH HOLE connector.

The RFD21742 and RFD21743 is functionally identical to the RFD21733 module and the RFD21772 and
RFD21733 Eval Boards work just like the RFD21737 Eval Board except it has an 11 pin 1.5mm connector
on it so the RFD21742 or RFD21743 RFDANT can plug into it. The RFD21772 is the Eval board for the
RFD21742 and the RFD21773 is the Eval board for the RFD21743. The RFD21772 and RFD21773 each
include one RFDANT. You need a pair for a complete system.

The RFD21742 and RFD21743 RFDANTs have been range tested at 2,000 feet which is 4x the range of
the RFD21733 which is at 500 feet. No special PCB layout is needed for the RFD21742 or RFD21743
RFDANT, simply just put a connector on your PCB and you are done . All this substantial range
increase is achieved all without any increase in current or battery consumption.

The RFDANT is RF Digital's Patent Pending Radio Inside Antenna product, which is a complete radio
transceiver and antenna mounted inside of an antenna enclosure, suitable for mounting to virtually any
type of end-product, regardless if the enclosure is plastic, metal, glass, really any material.

The entire radio transceiver is mounted inside the antenna enclosure, so there is no loss of RF power to
the antenna from the module, and results in the most effective power transfer ratio possible, providing
lowest power consumption possible to achieve a specific range.

The radio being inside of the antenna and outside the enclosure allows for more room inside the
enclosure for the designers application electronics.

Minimal interference with the internal electronics of the enclosure results in better range and
performance of the wireless system.

The actual effective antenna is pushed away from the enclosure, which reduces the effect of holding the
enclosure, therefore improving the performance, range and predictability of the users wireless system.

Logic level signals are communicated through an unshielded cable (not coax) to the RFDANT, which can
be run for long distances without any loss to the performance of the wireless transceiver.

By the antenna and module being fully outside allows for easy retrofit of nearly any product due to it not
consuming any internal space inside the enclosure, drill a hole and screw it in, add a nut inside to
secure it and wire the logic level signals to your electronics.

Mount on metal or plastic enclosures with no worry about ground effects.
Stable Antenna Pattern providing substantial, well-distributed, passive-gain for transmit and receive,

results longer repeatable range from your wireless system.

For free Schematic and Layout design reviews, send color screen captures or PDFs of your schematic and
layout to [e-mail]. RF Digital’s Support and Application Engineers are ready to help you get your
wireless application running to today. Just send your application questions to [e-mail] and receive
direct, fast and accurate answers. We look forward to helping you!!!

Free Applications Support • Email your application questions to [e-mail]

9

© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

RFDANT • RFD21742 • RFD21743 • Compliance Approved

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Mating connectors for the 11 pin RFDANT can be found at Digikey in the USA at: http://www.digikey.com
or at any other JST distributor. They are standard connectors and you may use other manufacturers.

1) Top Entry, Through Hole Type, 11 pos
a. Digikey P/N 455-1666-ND
b. Manufacturer P/N: B11B--ZR

2) Side Entry, Through Hole Type, 11 pos
a. Digikey P/N 455-1678-ND
b. Manufacturer P/N: S11B--ZR

3) Top Entry, SMT Type, 11 pos
a. Digikey P/N 455-1690-2-ND
b. Manufacturer P/N: B11B—ZR-SM4-TF

4) Side Entry, SMT Type, 11 pos
a. Digikey P/N 455-1701-2-ND
b. Manufacturer P/N: S11B—ZR-SM4-TF

RFDANT • RFD21742 • RFD21743 • Mating Connectors

Free Applications Support • Email your application questions to [e-mail]

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Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

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RFDANT • EXCELLENT ANTENNA PATTERNS

53

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Vertical Antenna Pattern

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDANT RFD21742 and RFD21743 high
performance antenna patterns are easily
achieved without any RF considerations or
knowledge because the 11 pin cable and
connector only carries power and data
signals so NO RF cable loss at all. RF
Digital’s Patent Pending RFDANT design is
the only device in industry which can achieve
this outstanding performance.

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RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Free Applications Support • Email your application questions to [e-mail]

11

© Copyright, RF Digital
1/29/2013 9:40 AM

Patents Pending

RoHS CE • ESTI

RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

RFD21772 / RFD21773 Eval board with
RFDANT 11 pin connector.

When ordering part number RFD21772, you receive an RFDANT ev al board pictured below AND you also
receive an RFD2142 RFDANT. For Eval board usage instructions, see sections belo w.

When ordering part number RFD21773, you receive an RFDANT ev al board pictured below AND you also
receive an RFD2143 RFDANT. For Eval board usage instructions, see sections belo w.

RFD21772 & RFD21773 Eval Boards for RFDANT

RFD21772 Eval Board for RFD21742 RFDANT

RFD21773 Eval Board for RFD21743 RFDANT

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RFD21772 / RFD21773 Eval board with RFDANT
cable plugged into the 11 pin connector.

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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Flexible RFDANT cable does not have any shielding due to its revolutionary design and therefore do es
not need it. The 11 conductor cable is flexible and can easily confirm to fit your enclosure. Simply drill
hole into your enclosure, insert the RFDANT and you have instant excellent range performance.

RFD21773 • RFD21743 • RFDANT • Dimensions

13715 Alton Pkwy • Irvine • CA • 92618

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RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21733 • RFD21735 • RFD21742 • RFD21743 • Usage Examples

RFD21733 • RFD21735 • RFD21742 • RFD21743 • Applications

13715 Alton Pkwy • Irvine • CA • 92618

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RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21733 • RFD21735 • RFD21742 • RFD21743 • Applications

13715 Alton Pkwy • Irvine • CA • 92618

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RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21743 • FCC
Approved & Certified

RFD21733 • RFD21735 • RFD21742 • RFD21743 • Applications

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RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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The RFD21733 RF Module with
built-in chip antenna is soldered
onto the RFD21737 eval board.
The antenna is self-contained
within the module.

This eval board is self-contained
and does not require an external
antenna.

RFD21737 RFD21738 RFD21739

RFD21737

RFD21737

RFD21737

Differences Between Module Eval Boards

13715 Alton Pkwy • Irvine • CA • 92618

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The RFD21735 RF Module is
soldered onto the RFD21738 eval
board. There is a 1.2 inch wire
antenna soldered onto the
RFD21738 which connects to the
RFD21735 external antenna pin
through RF strip-line within the PCB
layers.

This eval board is self-contained
and does not require an external
antenna.

RFD21738

The RFD21735 RF Module is
soldered onto the RFD21738 eval
board. There is a FEMALE SMA
connector soldered onto the
RFD21738 which allows the user
to connect to an external 2.4 GHz
antenna of their choice. The
RFD21735 external antenna pin is
routed to the SMA connector
through strip-line within the PCB
layers. This eval board requires a

user supplied 2.4 GHz antenna
with a MALE SMA connector.

ANTENNA NOT INCLUDED

RFD21738

RFD21738

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFD21739

RFD21739

RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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All 5 Eval Boards, including the RFDANT boards can be powered from their on-board CR2032 3V battery or through
the 12 pin 0.100 inch (2.54mm) pitch header, which can plug into directly into standard solderless breadboards or
connect to mating a 0.100 inch (2.54mm) mating socket. The Eval Boards can work as stand-alone or can be wired
to your application. The RFDANT Eval Boards have an RFDANT 11 pin connector instead of a Module.

Eval Board Top and Bottom Labeled Views

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

RFDP8 Mode Selector Switch for all 5 Eval Boards

The 8 different modes of the RFDP8 Application Protocol are selected using the 3-position dip-switch S5 shown in
the examples below. The 3 inputs have resistor pull-downs to ground, so when the switch is in its OFF (open)
position, there is a low (0) on the input. When the switch is in its ON (closed) position, it connects the input to +V,
which produces a high (1).

The proper way to read binary is MSB on the left and LSB on the right. Switch manufacturers label th e switches
from left to right and furthermore they commonly start with 1 rather then 0. So careful attention needs to be given
to identify the switch positions. The binary is read from MSB to LSB, rather than LSB to MSB as shown in the
examples below. To remove all doubt, only follow the examples shown below.

Mode 0

Active RFID
Transmitter

OFF OFF OFF

Mode 1

3-Input

Switch Logic

Transmitter

ON

OFF OFF

Mode 2

Serial UART

Transceiver

9600-8N1

ON

OFF OFF

Mode 3

Serial UART
Transceiver

9600-8N1

Network

ON ON

OFF

Mode 4

3-Output Switch

Logic Receiver

500ms Hang Time

Mode 5

3-Output Switch

Logic Receiver

500ms Hang Time

Network

Mode 6

3-Output Switch

Logic Receiver

20ms Hang Time

Mode 7

3-Output Switch

Logic Receiver

20ms Hang Time

Network

ON

OFF OFF

ON ON

OFF

OFF

ON ON

ON ON ON

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Eval Board Top and Bottom View Pinout for All Eval Boards

There is an internal 3.3 Volt (LDO) on the eval boards. At the (pin 2) +V input pin, you can supply

2.1VDC minimum and a maximum of 3.6VDC. When your supplied voltage is between 3.4V and 3.6V the

internal regulator is in regulation and the internal supply to all parts will be 3.3V, and all signals on pins
9-12 will be at 3.3V logic. When 2.1V to 3.4V is supplied the internal 3.3V regulator is of regulation and
tracks the input voltage (minus about 100mv overhead). If you supply 2.5V your logic will be at 2.4V,
and if you supply 2.1V your logic will be at 2.0V. The internal 3.3V regulator accept up to a 5V supply
input, but at 5V supply, your logic levels on pins 9-12 will be at 3.3V, SO USE CAUTION. So you will
need to use 3.3V to 5V logic level shifters to run properly at 5V or you will cause damage to the module.
When using a 5V supply, a very quick 5V level shifter method (not to be used for production) just for
testing, which works in some cases would be to use a 22K resistor in series between the eval boards

3.3V logic and your 5V logic. There is a 47k pull down resistor internal to the Eval Boards ONLY (NOT

THE MODULE or RFDANT) on pin 9-12 and this is just enough to switch the logic levels in both

directions for a quick and dirty level shifter. There are NO 47k pull down resistors on the Modules or

RFDANTs, so you must add your own pull-downs or pull-ups accordingly.

Eval Board Power Supply and Logic Levels - Important

13715 Alton Pkwy • Irvine • CA • 92618

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Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

RF Modules and RFDANTs run on 3V Logic Levels (1.9V to 3.6V)

The RFD21733, RFD21735, RFD21742 and RFD217 43 all run o n a sup ply of 1.9V to 3.6V. They have an
internal voltage regulator which is set to 1.8V and it is an LDO so you only need about 100mV of overhead to
keep it in regulation. Most circuits which will interface with these devices will be 3V or 3.3V typical, so we will use
those voltages for reference in this section. If your circuit runs on 2.5V, 3V or 3.3V, then no problem, you can
directly apply supply voltage of 2.5V, 3V or 3.3V to the Module or RFDANT and all your logic signals will be at

2.5V, 3V or 3.3V for a direct interface with your hardware. However if your circuit is running at a higher voltage
such as 5V, then you need to use a level shifter IC or a circuit which will translate the Module or RFDANT signals
from 3V to 5V for your circuit, and also the 5V from your circuit to the 3V for the Module or RFDANT. Of course
you will also need a regulator to drop from 5V down to 3V for the Module or RFDANT.

Simple 5V to 3V Logic Level Shifter for prototyping ONLY.

If you want a quick an dirty, temporary solution to interface the 3V RF Module or RFDANT to your 5V logic circuit,
then you can use a simple resistive divider to get your prototype up and running quickly with just a couple
resistors. First, you must supply a regulated 3V or 3.3V to the RF Module or RFDANT using a voltage regulator.
Now regarding the logic signals, you can connect a 47k pull down resistor to the logic lin es on the following 6
signals, Mode Select 1, Mode Select 2, Learn / Status, IN1 / OUT 1 / LOGIC IO, IN2 / OUT2 / RXD, IN3 / OUT3 /
TXD. The RESET has an internal 3.3K pull up and does not apply to this option, and the Mode Select 0, at power

up has an internally switched 13k resistor and also does not apply to this option. After connecting the 47k pull

down resistor on the Module or RFDANT pins, then use a 22k series resist or to connect the six Module or
RFDANT logic pins mentioned above to your 5V device. That will create a 2/3 voltage divider from your 5V
device to the 3V RF Module or RFDANT when the 5V device is driving 3V device. When the 3V device is driving
the 5V device, there is no divider in that direction, only a 22k series resistor into a high-Z input on the 5V side, so
the 5V side will see the full 3V logic, and that is in most cases, just enough to cause a logic high for a 5V logic
input. Note this is not a production solution, its just a quick-and-dirty way to get a 5V logic circuit to work with a
5V logic circuit for prototyping. Of course once you have hooked this up and if it does not work for you, do
measure the logic levels using a scope on both 5V and 3V nodes to make sure they are actually at sufficient
levels to meet the minimums for logic levels for the specific device. Note if you do not have a high-Z input on the
5V side, this will not work. At first chance, when possible, use a proper level shifter capable of sinking and
sourcing current and able to do fast switching as this circuit is very limited with its scope of value and use. The

Eval Boards have a 47k pull down resistor mounted on the above six referenced pins, so if you are using an Eval
Board then all you need is the series 22K resistor (don’t add an additional 47k resistor or it will not work), b ut if
you are using the RF Module or the RFDANT WITHOUT the Eval Board, then you will need to add the 47k
resistors.

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Eval Board Example with internal 47k resistor.

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

RS232 Level Shifter Interface

To connect to an RS232 port (9600-8N1), you must use a level shifter to shift the voltage levels from RS232
levels to 3V or 3.3V logic. There are many ICs which can perform that task all in one chip. For example the
MAX232, MAX202 or the ICL3321. If you want to connect to a PC you can use this method or you can use a
USB port and connect through a virtual communication port shown in the next section. You can use this same
interface when connecting to the Eval Boards. Very important, make sure you pull down the Logic IO signal to

ground through a 47k resistor if it is not in use, note it is bi-directional so you must use a pull down.

FTDI USB Virtual Communication Interface

FTDI manufactures a 3.3V Logic Serial Interface cable which plugs into a USB port and shows up a s a CO MM
port on your PC, through which you can connect to PC terminal programs like Hyper Terminal, RealTerm and
others.

You can purchase the FTDI cable from Digikey.com or other distributors. The manufacturer part number is TTL­232R-3V3 and the Digikey Part Number is 768-1016-ND (picture shown below). For international orders, if you
want to save on shipping, you can ask for this item to be packed in with your order to RF Digital.

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When using the FTDI USB Interface Cable TTL-232R-3V3, the connections to the RFD217 37, RFD21738,
RFD21739, RFD21772, and RFD21773 Eval Boards are very simple. You only need 4 wires and the Eval Board
is also powered from the USB port through the cable.

The 3V3 part of the part number for the cable means that the logic levels of the cable are 3.3V.

IMPORTANT:
The RED wire supplies +5V, and can ONLY be connected to the Eval Boards since the Eval Boards have an on­board 3.3V regulator. You can NOT connect +5V to the Module or RFDANT directly. This is ONLY intended for
the Eval Board.

The 4 wires you need from the cable are:
RED is +5V
BLACK is GROUND
YELLOW is TXD Data Input to the PC USB Port.
ORANGE is RXD Data Output from the PC USB Port.

FTDI Cable to RFD Eval Boards:
RED – connect to RFD Eval Board Pin 2 and Pin 3 (Pin 2 is power on. Short pin 2 and pin 3.).
BLACK – connect to RFD Eval Board Pin 1.
YELLOW – connect to RFD Eval Board Pin 11, which is the RXD Data Output of the Eval Board.
ORANGE – connect to RFD Eval Board Pin 12, which is the TXD Data Input of the Eval Board.

FTDI TTL-232R-3V3 USB Cable

wired to RFD Eval Board

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FTDI TTL-232R-3V3 USB Cable

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

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RFD21733/35 • FCC • IC
RFD21743 • FCC
Approved & Certified

13715 Alton Pkwy • Irvine • CA • 92618

Tel: [phone] • www.RFdigital.com

Fast Answers: [e-mail]

RFDP8

RF Module

RFD21733
RFD21735
RFD21737
RFD21738
RFD21739

RFDP8

RFDANT

RFD21742
RFD21743
RFD21772
RFD21773

KEYFOBs

Free Schematic, Layout and Application Design Reviews

For free Application, Schematic and Layout design reviews, send color screen captures or PDFs of your
schematic and layout to [e-mail]. RF Digital’s Support and Application Engineers are
ready to get your wireless application running today. Why spend lots of time reading volumes of data?
Instead, simply send your application questions to [e-mail] and receive direct, fast and

personal answers focused on your specific project and needs. We look forward to hearing from you!!!

FCC Compliance Information

The RFD21733/35 are IC and FCC Modular Approved and Certified, therefore for use of the RFD217 33/35
module in your product does not require further IC or FCC testing. Detail instructions and IC and FCC notices
shown later in this data sheet. Any modifications made to the RFD21733/35 will void the IC and FCC Approval
and Certification. The RFD21733 has an integrated on-board chip antenna, while the RFD21735 needs a

2.4GHz, max. 5dBi gain whip antenna. You simply include the RFD21733/35 in your product, follow the IC and
FCC notices and information below and place the appropriate label on your product to indicate that it includes an
IC and FCC approved module and no further testing would be required for the module.

The RFD21743 is FCC Modular Approved and Certified, therefore for use of the RFD21743 module in your
product does not require further FCC testing. Detail instructions and FCC notices shown later in this data sheet.
Any modifications made to the RFD21743 will void the FCC Approval and Certification. The RFD21743 has an
integrated antenna. You simply include the RFD21743 in your product and follow the FCC notices and
information below and place the appropriate label on your product to indicate that it includes an FCC approved
module and no further testing would be required for the module.

CE, ETSI Compliance Information

The RFD21733, RFD21735, RFD21742 and RFD217 43 are CE (ETSI) Tested. See declaration of conformity
later in this document.

RFDP8 Firmware

RF Digital offers firmware for the RFD21733, RFD21735, RFD21742, and RFD21743 that meets many common
user requirements. The firmware and a unique identifier are pre-programmed and tested at the factory. The
programmed module is therefore immediately ready for use upon delivery.

The RFDP8 firmware uses the 3 mode select inputs to select the operating mode. These inputs are sam pled
when the module powers-on.

Some of the operating modes have additional options which are described in the section for that mode.
The RFDP8 firmware cannot be modified by the user. For applications that require alternative functionality,

contact RF Digital for information about custom firmware to fit your specific requirements.

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